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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:14 
Transit: 12:14 
Sunset: 17:14
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All Constellations » Perseus » 

HR641

Above the horizon.  Circumpolar today
Alt: 20.21°   Az: 2.40°   Direction: North

HR641 is a supergiant star of spectral class A3 in the constellation of Perseus.

HR641 visual magnitude is 6.44. Because of its faintness, HR641 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of HR641 star
DSS2 image of HR641. The red arrow shows the motion of HR641 during the next 10000 years (-2.00 arcmin in Right Ascension and 3.33 arcmin in declination);

Celestial Coordinates

Apparent

02h 15m 29s
+58° 40’ 39”
12h 17m 22s
14h 32m 51s

J2000

02h 13m 41s
+58° 33’ 39”

Galactic Coordinates

133.5°
-2.61°

Finder Chart

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Finder chart for HR641.

Magnitude, Color, Spectral Class

6.44
Supergiant

-3.29
A3I
5968K

The red dot in the diagram below shows where HR641 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR641. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR641 is distant 2,884.96 light years from the Sun and it is moving towards the Sun at the speed of 41 kilometers per second.

884.96
2,884.96
-41 km/s
-0.012 arcsec/y
0.02"/y

Alternative Designations

SAO23044
SAO23044

Visibility from Your Location

HR641 is circumpolar and transits at 16:31 UTC (altitude: 82.8°)